OPTIMA D34M BLUETOP Dual Purpose Boat and RV Sealed AGM Battery
- 750 CCA Cold cranking amps, taken from the item highlight
- Dual purpose Starting and deep cycle use in one sealed AGM battery
- 12 volts, 6 cells Lead acid construction, marine terminal
- 43.5 lb case Measures 6.88 in deep, 10 in wide, 7.81 in tall
- Boat and RV fit Listed vehicle type is boat, not a passenger car
Updated 23 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
Sensible for owners who want one battery to start the engine and also feed accessories. Weight and the marine terminals need checking, so confirm your cables and tray first.
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ASIN: B00075OSCOModel: D34M
Overview
Built to both start an engine and run deep cycle loads, this sealed AGM lead acid battery has a spiral cell design and a spill-proof case, and it needs no watering or other routine upkeep.
One battery covers engine starts and the house loads of a boat or RV, so you avoid carrying two different types. The maker also cites strong vibration resistance against conventional flooded designs, which matters on rough water or roads. The limitation is fit. The listing shows marine terminals and a boat vehicle type, so a car with standard top posts may need adapters.
Who it's for
Owners of a cruising boat or motorhome who power lights, a fridge or electronics from the battery bank and still need dependable engine starts. Flexible mounting angles help in tight compartments. A commuter car owner gains nothing from the deep cycle design.
Pros and cons
- Starts engines and runs accessories
- Sealed AGM, no routine upkeep
- Spill-proof, mounts at different angles
- Vibration resistant construction
- Heavy for one person to lift
- Cable adapters likely needed for cars
- Amp-hour capacity not published
- Listed vehicle fit is boat only
Performance notes
Starting strength follows the cold cranking figure on the listing, and the spiral construction is the maker's route to clean, strong output. Because it is dual purpose, expect a compromise between a pure starter and a pure deep cycle bank. A higher reserve capacity, according to the maker, extends shelf life between uses.
Specifications
| Brand | OPTIMA |
|---|---|
| Model | D34M |
| Dimensions & fit | |
| Item Weight | 43.5 pounds |
| Power & efficiency | |
| Battery Type | Lead Acid |
| Voltage | 12 volts |
| Compatibility & installation | |
| Compatible With Vehicle Type | Boat |
| Included components | |
| Included Components | Battery |
| Warranty & support | |
| Manufacturer Warranty Description | 24-month guarantee |
| Other details | |
| Automotive Fit Type | Vehicle Specific Fit |
| Number Of Cells | 6 |
| Terminal | Marine Terminal |
Frequently asked questions
Is the Optima BlueTop a starting or a deep cycle battery?
It is both. The maker calls it dual purpose, covering engine starts and accessory loads.
Will it fit a regular passenger car?
The vehicle type is listed as boat and the terminal as marine, so it is aimed at boats and RVs. Check terminal style and tray size before putting it in a car.
Does this battery need regular maintenance?
No. It is a sealed unit described as maintenance free.